The second USS Mayrant, DD 402, was laid down 15 April 1937 at the Boston Navy Yard, Boston, Mass.; Iaunched 14 May 1938; sponsored by Mrs. E. Sheely, a descendant of Capt. John Mayrant; and commissioned 19 September 1939, Lt. Comdr. E. A. Taylor in command.

Captain John Mayrant was born in the Parish of St. James, Santee, South Carolina, December 1762.    Appointed midshipman in the South Carolina Navy, 23 May 1778, he was appointed midshipman and aide to John Paul Jones in France the following year.    Under Jones in Bon Homme Richard, he led the boarders in the engagement with HMS Serapis off Flamborough Head, 23 September 1779.    He died in Tennessee, August 1836.

   During the summer of 1940, after shakedown and an extended training period, Mayrant escorted her Commander in Chief, Franklin D. Roosevelt, on a tour of east coast defenses. Later on in the year, again escorting the President, she visited island bases newly acquired from Great Britain under the "destroyers for bases" agreement.
   The following spring, 1941, as U.S. involvement in European hostilities increased, her Navy expanded its efforts to keep the sealanes open. In May, the limits of the neutrality patrol were extended and the Navy gradually expanded its responsibilities for transatlantic convoys. By September, it was officially responsible for protecting them as far as Iceland, lengthening the patrols of the Support Force, Atlantic Fleet, which had been assigned the task.
   Mayrant, on duty with that force, operated off Newfoundland during the spring and summer. In August she stood-by during the Atlantic Charter Conferences and, at their conclusion, escorted HMS Prince of Wales, carrying Prime Minister Churchill, to Great Britain. (continued)